1. an advertising company charges $40 per half-page advertisement and $75 per full-page advertisement. michael has a budget of $800 to purchase 13 advertisements.
(a) define a variable for each unknown and write a system of equations to represent the situation.
(b) how many half-page advertisements does michael purchase? show your work.
(c) how many full-page advertisements does michael purchase? show your work.

the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

                      )

triangle abd and cba are similar,

                            (2)

triangle cad and cba are similar,

                      )

using (1), (2) and (3), we get

hence proved.

therefore option 2 is correct.

i think its doubled. let me know

step-by-step explanation:

b

step-by-step explanation:

this is because the profit is decreasing and turning into debt

      2

  2 is to go somewhat to the top right of a because it is squared    

v= a h/3